Selena Gomez and Niall Horan'Nilena' have been plagued by relationship reports for several years now and they were snapped enjoying an Italian holiday in February 2014Recording artist Selena Gomez attends Z100's Jingle Ball 2015 at Madison Square Garden on December 11, 2015 in New York City. (Photo by Brad Barket/Getty Images for iHeartMedia)Recording artist Niall Horan of One Direction performs onstage during 102.7 KIIS FMs Jingle Ball 2015 Presented by Capital One at STAPLES CENTER on December 4, 2015 in Los Angeles, California. (Photo by Kevin Winter/Getty Images for iHeartMedia)(left to right) Liam Payne, Louis Tomlinson, Harry Styles and Niall Horan of One Direction arrives on the red carpet for the BBC Music Awards at the Genting Arena, Birmingham. Picture: Joe Giddens/PA Wire

It was one of the most important moments in his music career, so it's only fitting that Niall Horan had his rumoured new love interest by his side.

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Selena Gomez spotted at the X Factor for rumored beau Niall Horan's last One Direction performance

Independent.ie

It was one of the most important moments in his music career, so it's only fitting that Niall Horan had his rumoured new love interest by his side.

The Mullingar native (22) marked his last performance with One Direction before their hiatus on Sunday night back where it all started - The X Factor.

The band was handpicked by Simon Cowell in 2010 and now they're preparing to go their separate ways for an undecided amount of time.

And one person who was on hand to offer a shoulder of support was singer Selena Gomez (23), who has been linked to Horan in recent weeks after they were spotted kissing at actress Jenna Dewan Tatum's birthday party earlier this month.

Selena has previously denied she has a romantic relationship with the Irish singer, saying: ''Oh my god! No [but] I love him, I always have. He's amazing.''

One Direction's former mentor Simon Cowell paid a fitting tribute to the foursome before their performance, saying he "never could have predicted" they would have achieved the levels of superstardom they've reached in the last five years.